首页>
外国专利>
Circuit arrangement for changing current telescopic chromatography, in which an ac voltage in the modulator with passed upwards and downwards is controlled, and in which, on the receiving end, the incoming frequency is doubled and with the doubled frequency of a generator is controlled from the origin frequency
Circuit arrangement for changing current telescopic chromatography, in which an ac voltage in the modulator with passed upwards and downwards is controlled, and in which, on the receiving end, the incoming frequency is doubled and with the doubled frequency of a generator is controlled from the origin frequency